adrenaline - / əˈdrenəlɪn / -
noun
Half of the magic formula for feeling great, a naturally produced hormone that floods into the body when skiing steeps and dropping cliffs. When it comes, it increases blood flow to muscles, output from the heart and blood sugar levels, it also dilates your pupils. Pair this with Dopamine and you have a glorious formula.
\\ That drop was bigger than I thought, I can still feel the adrenaline in my veins.